Added code for defining SHA attributes

These attributes are stored in binary in the database, but exposed as
strings. This allows one to query/create data using plain SHA1 hashes as
Strings, while storing them more efficiently as binary.

1 files changed, 27 insertions, 0 deletions

diff --git a/spec/models/concerns/sha_attribute_spec.rb b/spec/models/concerns/sha_attribute_spec.rb
new file mode 100644
index 00000000000..9e37c2b20c4
--- /dev/null
+++ b/spec/models/concerns/sha_attribute_spec.rb
@@ -0,0 +1,27 @@
+require 'spec_helper'
+
+describe ShaAttribute do
+  let(:model) { Class.new { include ShaAttribute } }
+
+  before do
+    columns = [
+      double(:column, name: 'name', type: :text),
+      double(:column, name: 'sha1', type: :binary)
+    ]
+
+    allow(model).to receive(:columns).and_return(columns)
+  end
+
+  describe '#sha_attribute' do
+    it 'defines a SHA attribute for a binary column' do
+      expect(model).to receive(:attribute)
+        .with(:sha1, an_instance_of(Gitlab::Database::ShaAttribute))
+
+      model.sha_attribute(:sha1)
+    end
+
+    it 'raises ArgumentError when the column type is not :binary' do
+      expect { model.sha_attribute(:name) }.to raise_error(ArgumentError)
+    end
+  end
+end